吴临江1,
郑昱1,
顾红2
1.南京电子技术研究所 ??南京 ??210039
2.南京理工大学电子工程与光电技术学院 ??南京 ??210094
详细信息
作者简介:程院兵：男，1984 年生，高级工程师，研究方向为机载雷达信号处理、MIMO雷达信号处理等
吴临江：男，1979 年生，高级工程师，研究方向为机载雷达系统设计
郑昱：男，1979 年生，研究员，研究方向为机载雷达信号处理
顾红：男，1967 年生，教授，研究方向为阵列信号处理、目标检测、MIMO雷达信号处理
通讯作者:程院兵 chengyb@yeah.net
中图分类号:TN958计量
文章访问数:1481
HTML全文浏览量:645
PDF下载量:31
被引次数:0
出版历程
收稿日期:2017-10-25
修回日期:2018-05-15
网络出版日期:2018-07-12
刊出日期:2018-09-01
Multi-dimensional Vandermonde Structure Based DOD-DOA and Doppler Frequency Estimation for Bistatic MIMO Radar
Yuanbing CHENG1,,,Linjiang WU1,
Yu ZHENG1,
Hong GU2
1. Nanjing Research Institute of Electronics Technology, Nanjing 210039, China
2. School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094, China
摘要
摘要:针对双基地MIMO雷达收发角及多普勒联合频率估计问题，该文基于参数流型矩阵的多维范德蒙德结构特征，提出一种低运算量的3维参数联合估计算法。首先根据回波模型的多维结构特性构造3阶张量，并对其分别沿发射维、接收维和脉冲维切片得到3个等效矩阵；然后结合多维范德蒙德结构特征和等效矩阵的左奇异矩阵具有Khatri-Rao乘积结构特征，估计收发阵列流型矩阵和多普勒流型矩阵；最后通过Root-MUSIC算法估计收发角和多普勒频率。与现有算法相比，该算法显著改善了参数估计精度，在小脉冲数下，其运算量与旋转不变子空间算法(ESPRIT)相当。仿真实验验证了该算法的有效性。
关键词:双基地MIMO雷达/
收发角/
多普勒频率/
3阶张量/
范德蒙德结构
Abstract:In order to solve the problem of Direction Of Departure (DOD), Direction Of Arrival (DOA) and Doppler frequency estimation in bistatic MIMO radar, a low complexity method is proposed for joint estimation of the three parameters based on the multi-dimensional Vandermonde structure characteristic of the parameter manifold matrices. First, a third-order tensor is constructed according to the multi- dimensional structure of the echo model. Three equivalent matrices are obtained by cutting the tensor along transmit dimension, receive dimension and pulse dimension respectively. Then, combining the multi-dimensional Vandermonde characteristic with the Khatri-Rao product characteristic of the left-singular matrix of the equivalent matrix, transmit manifold matrix, receive manifold matrix and Doppler manifold matrix are estimated. Finally, the DOD, DOA and Doppler frequency are estimated by Root-MUSIC algorithm. Compared with the existence methods, the proposed algorithm improves obviously the estimation precision, and its computational cost is comparable to that of Estimation of Signal Parameters via Rotation Invariant Techniques (ESPRIT) method in small pulse number. The effectiveness of the proposed method is verified by simulation results.
Key words:Bistatic MIMO radar/
Direction Of Departure and Direction Of Arrival (DOD-DOA)/
Doppler frequency/
Third-order tensor/
Vandermonde structure
PDF全文下载地址:
https://jeit.ac.cn/article/exportPdf?id=f37b66f6-bb06-4e06-9b22-893c23fe6c5e
